this post was submitted on 23 Oct 2025
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Most of the time, we consider heat output to be inefficient. It only works here because heat happens to be its purpose.
You could say it's 0% efficient.
I dunno, I’m seeing some light.
Light is absorbed by materials and ultimately becomes heat.
Doesn't everything ultimately become heat?
Yes, that is why it states "this is what peak thermodynamic performance." In electronics people are taught that no device is 100% efficient because energy is lost as heat. A heater is 100% efficient because everything becomes heat.
Four or five?
and what happens to the energy of said photons once they interact with your retina?